Parallax 28985 Manuel utilisateur
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Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 1 of 7
PING))) Kit for Stingray (#28985)
This kit gives the Stingray Robot the ability to sense its surroundings while in operation; with the addition
of these modules, the Stingray can actively maneuver, avoid, or find objects that could not previously
detected. The 3 PING))) sensors are attached to the front of the Stingray mounting panels giving it a
wide field of view; with various mounting holes you can customize or install the modules in a manor
which best suits the needs of the robot.
Features
PING))) Ultrasonic Range Finders
3-pin extension cables for easy
connections
Nylon spacers to ensure proper
installation on the chassis
Ultrasonic vision for the Stingray Robot for
up to 9 meters
Key Specifications
Power requirements: ~60mA @ 5 VDC
(~20mA each PING))) sensor)
Communication: Positive TTL Pulse
Operating temperature: +32 to +158 °F (0 to +70 °C)
Application Ideas
Ultrasonic vision for a robot
Robotic distance detector
Bill of Materials
Part # Description Quantity
28015 PING))) Ultrasonic Range Finder 3
700-00003 4/40 Zinc Plated Nut 6
710-00006 4/40 ½” Zinc Phillips Pan-head Screw 6
713-00015 3/16”, #8 Plastic Spacer 6
805-00001 10” Lead free extension cable 3
700-00015 Nylon washers, #4 6
700-00025 Rubber Grommet 13/32” 3
Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 2 of 7
Assembly Instructions
Step 1: Part Verification
Unpack everything from the packages and
make sure you have all the parts and that
you have the tools listed below.
1 – Built-up Stingray Robot
3 – PING))) Ultrasonic Range
Sensors
6 – 4/40 Zinc nuts
6 – 4/40 1/2” zinc pan head screws
6 – 3/16” #8 Plastic Spacers
3 – 10” Extension cable
6 – Nylon Washer #4
3 – Rubber Grommet
1 – Parallax screw driver *
1 – 1/16” Hex Key *
Note: Tools indicated with a * are provided
in the Stingray Robot Kit and not included in
the PING))) Kit.
Step 2: Disassemble
Using the 1/16” Hex key that came with the
Stingray Robot kit; start by unscrewing the
front sensor mount plates, hereafter referred
to as plates or plate.
Each plate will have 4 screws connecting to
the chassis, two on top and two on bottom.
Once removed, keep these screws in a
secure place.
Once all 3 plates are out, you should have a
total of 12 screws as well as 3 lose front
plates.
Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 3 of 7
Step 3: Connecting Cable
Connect a10” extension cables to the
PING))) sensor. The pins on the module
should be connected to the cable as
followed:
Black connects to GND
Red connect to 5V
White connects to SIG
Place a rubber grommet in the circular area
of plate and insert the connection cable
through the grommet.
If in step 4 you chose to install the PING)))
in a different orientation, it is suggested that
the grommet be still used to protect the
cable from getting damaged.
Step 4: PING))) Sensor Assembly
Place the nylon spacers as pictured to align
the PING))) sensor. It is possible to install
the sensors in various places on the plate,
the middle was chosen for versatility;
however if the PING))) sensors are installed
to close to a surface, they are likely to
encounter false echoes.
Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 4 of 7
Using a screw, nylon washer, and hex nut;
connect the PING))) module to the plate. Do
not tighten the screws all the way until you
have adjusted the PING))) to make sure it is
being installed straight.
Once you have installed the PING)))
module, the plate should look similar to the
one pictured.
Step 5: Repeat (x2)
Once you have completed the first plate,
use the previous step to build the other two
plates. When you are finished with this step,
you should have 3 sensor mount plates that
look similar to those pictured.
Step 6: Sensor Mount Plate Re-Assembly
You can use the circular cutout on the top of
the Stingray to route the cables to connect
to the I/O pins.
Note: Remember which PING))) uses which
cable; the white wire of the cable will
connect to an I/O pin in step 8.
Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 5 of 7
Using the same screws from step 2,
connect plate back on the Stingray.
Note: When connecting the plate, do not
tighten the screws until all 4 are in; this will
installing the sensors straight easier.
Step 7: Repeat (x2)
Connect the other two plates in the same
manner as the first.
Once completed, you should have no extra
screws and the robot should look similar to
this example.
Step 8: Connecting PING))) to I/O
With the Stingray oriented so that the
PING))) modules are facing away from you;
the numbering goes as followed:
Left PING))) to I/O pin 0
Center PING))) to I/O pin 1
Right PING))) to I/O pin 2
Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 6 of 7
Step 9: Download Samples
Download PING)))s on a Stingray robot -
Archive (.zip) from the Downloads and
Resources area on the product page, item
code #28985.
Save all 3 files. Once the zip is extracted to
a folder, open Stingray Demo.spin; this is
the top level program leaving PING))).spin
and PWMx8.spin as the object files.
Step 10: Turn On & Run Program
Turn the Stingray power switch to POWER
ON/MOTORS OFF.
Download the top level program (Stingray
Demo.spin) to the Propeller by pressing F11
or selecting run => compile current => Load
EEPROM.
The Stingray is ready to roam.
Resources and Downloads
Stingray Robot Documentation v1.1 (.pdf)
PING))) on a Stingray robot - Archive (.zip)
Copyright © Parallax Inc. PING))) Kit for Stingray (#28985) 12/8/2009 Page 7 of 7
Device Information
Theory of Operation
The demo program displays how the Stingray can avoid obstacles using the ultrasonic sensors. The
Stingray can maintain a course of forward progress and can be programmed to perform a various number
of other tasks while still keeping the proper distance; if stuck in a corner or similar type obstruction then
the Stingray will spin while finding the best option. Once you have verified that everything works and is
functional; continue and enjoy creating your custom applications.
Precautions
Do not rely solely on the PING))) sensors to see an object to halt operation; if you feel there is
any way of possible damage to either the robot or bodies, please exercise extreme caution while
using the Stingray Robot. If you have any questions, feel free to contact technical support to get
any questions answered.
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